Harry Markowitz and the Philosopher’s Stone

Laurence Articles

With Stephen C. Sexauer “I know some things,” he said. “I can, you know, do math and stuff.” – Harry Potter, in Harry Potter and the Philosopher’s Stone, by J. K. Rowling Most investors believe we “know some things” — and that we can do some “math and stuff.” But the question is: Do we know what we need to …